在多数场合下用电器所需电源电流不是很大,当我们需要从现有的直流电源里取得更高一些的直流电压时,使用倍压器是很实用的,见附图。乍一看,这里的输出电压Vo应该等于输入电压Vi减去VD1和VD2的压降和。然而,这是一个倍压电源。 互补管VT1、VT2和R1、R2、C1组成振荡器,振荡频率由R1 In most cases, the power supply current required is not very large, when we need to obtain a higher DC voltage from the existing DC power supply, the use of voltage doubler is very useful, see the accompanying drawings. At first glance, the output voltage Vo here should be equal to the input voltage Vi minus the voltage drop sum of VD1 and VD2. However, this is a double voltage source. Complementary tube VT1, VT2 and R1, R2, C1 form the oscillator, oscillation frequency by the R1